Model # V1

Internet #302248029

0080956954039

110 CFM Power Crawl Space Fan

$ 79 99

Overview

The Tjernlund UnderAire Series V1 Crawl Space Ventilator is designed to circulate fresh outdoor air underneath homes and porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns, joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may also cause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases, treated wood off-gassing and other odors that might migrate into living areas.
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Frequently Bought Together

Frequently Bought Together

Product Overview

The Tjernlund UnderAire Series V1 Crawl Space Ventilator is designed to circulate fresh outdoor air underneath homes and porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns, joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may also cause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases, treated wood off-gassing and other odors that might migrate into living areas.
  • Excess moisture can cause mold, mildew and wood rot; under air fans increase air circulation to fight condensation
  • Calculate the cubic area of the crawl space by multiplying the length x width x height; divide this number by 15 to determine the minimum CFM necessary to fully ventilate the space in 15 minutes
  • 1-fan and small faceplate forventilation openings through brickfoundations (requires switch or dehumidistatto activate)
  • 110 CFM to circulate fresh outdoor air underneath homes and porches
  • Ventilator models are equipped with a factory installed and pre-wired thermostat which will prevent operation of the fan below 35°F outdoor temperature; normal operation of the fan will resume once the temperature outside rises near 50°F
  • Constant operation helps vent radon gases, treated wood off-gassing and other odors that might migrate into living areas
  • 1-fan and small face plate forventilation openings through brick foundations
  • Ventilators are installed inside crawl space behind existing ventilation opening; screws and masonry wall anchors are included
  • Efficient

Product Overview

Model #: V1
Internet #: 302248029

The Tjernlund UnderAire Series V1 Crawl Space Ventilator is designed to circulate fresh outdoor air underneath homes and porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns, joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may also cause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases, treated wood off-gassing and other odors that might migrate into living areas.

  • Excess moisture can cause mold, mildew and wood rot; under air fans increase air circulation to fight condensation
  • Calculate the cubic area of the crawl space by multiplying the length x width x height; divide this number by 15 to determine the minimum CFM necessary to fully ventilate the space in 15 minutes
  • 1-fan and small faceplate forventilation openings through brickfoundations (requires switch or dehumidistatto activate)
  • 110 CFM to circulate fresh outdoor air underneath homes and porches
  • Ventilator models are equipped with a factory installed and pre-wired thermostat which will prevent operation of the fan below 35°F outdoor temperature; normal operation of the fan will resume once the temperature outside rises near 50°F
  • Constant operation helps vent radon gases, treated wood off-gassing and other odors that might migrate into living areas
  • 1-fan and small face plate forventilation openings through brick foundations
  • Ventilators are installed inside crawl space behind existing ventilation opening; screws and masonry wall anchors are included
  • Efficient

Info & Guides

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Price
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$79.99
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Ratings (34) (63) (6) (27)
Power Type Electric Powered Electric Powered Electric Powered Electric Powered
Wildlife Guard Yes Yes
Ventilation Type Roof Roof Exhaust Roof
Material Galvanized Steel Galvanized Steel Galvanized Steel Galvanized Steel
View Product View Product View Product View Product

Specifications

Dimensions

Cut-Out Diameter (in.)
162
Product Depth (in.)
2 in
Product Height (in.)
14 in
Product Width (in.)
7 in

Details

Airflow (CFM)
110
Amperage (amps)
0.30 A
Color Family
Metallic
Color/Finish Family
Metallic
Horsepower (hp)
.01 hp
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
4 lb
Recommended Sq. Ft.
1500
Returnable
90-Day
Thermostat Controlled
Yes
Ventilation Type
Exhaust
Voltage (volts)
115
Wildlife Guard
Yes

Warranty / Certifications

Manufacturer Warranty
1 Year

Specifications

Dimensions

Cut-Out Diameter (in.)
162
Product Depth (in.)
2 in
Product Height (in.)
14 in
Product Width (in.)
7 in

Details

Airflow (CFM)
110
Amperage (amps)
0.30 A
Color Family
Metallic
Color/Finish Family
Metallic
Horsepower (hp)
.01 hp
Material
Galvanized Steel
Power Type
Electric Powered
Product Weight (lb.)
4 lb
Recommended Sq. Ft.
1500
Returnable
90-Day
Thermostat Controlled
Yes
Ventilation Type
Exhaust
Voltage (volts)
115
Wildlife Guard
Yes

Warranty / Certifications

Manufacturer Warranty
1 Year

Questions & Answers

Does this fit over a crawlspace vent?

Asked by: Jeff
no not over but it fits in the space.
Answered by: kenn
Date published: 2018-08-31
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Customer Reviews

110 CFM Power Crawl Space Fan is rated 3.8 out of 5 by 6.
Rated 3 out of 5 by from You do NOT want to pull in outside air into your crawl space. You want to pull the crawl space a... You do NOT want to pull in outside air into your crawl space. You want to pull the crawl space air OUT. The outside air is what has all of the moisture and when it comes into your cool crawl space it condenses on your floor joists and insulation which is why you want to keep outside air OUT and vent the crawl space air OUT.
Date published: 2019-03-28
Rated 4 out of 5 by from Wrong photos Note: Does not include humidistat or power cord, as shown in Home Depot photos. Photos are of higher model. So you will have to hard-wire to the attached elec box. No humidistat on this item, but all models have a non-adjustable thermostat built-in.
Date published: 2018-05-23
Rated 3 out of 5 by from it' a bit small I wantd it to remove air from my crwl space but I don't have a... it' a bit small I wantd it to remove air from my crwl space but I don't have a prevailing wind. so i'm not sure what direction im should put the fan to blow
Date published: 2018-08-31
Rated 5 out of 5 by from Simple, basic. This was the hard wire version. Just waiting... Simple, basic. This was the hard wire version. Just waiting to see if it turns off st 40 degrees Fahrenheit as advertised. Still warm here.
Date published: 2018-10-10
Rated 5 out of 5 by from Easy very simple to work with and it will do everything I need it to do! Easy very simple to work with and it will do everything I need it to do!
Date published: 2018-07-25
Rated 3 out of 5 by from Same size as hole, had to make brackets. ... Same size as hole, had to make brackets.
Date published: 2018-08-16
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